一种新的数据中心结构风险评估方法

IF 1.4 4区 工程技术 Q3 ENGINEERING, CIVIL
Kubilay Çiçek, A. Sarı
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引用次数: 2

摘要

以往的地震表明,结构安全评价应包括对非结构构件的评价。非结构性部件的故障可能会影响医院和消防站等关键设施的运行能力,从而导致死亡人数增加。此外,非结构构件的失效可能会导致社区的经济、建筑和历史损失。在具有高科技设备的结构中,加速度和随机振动必须处于预定义的限制之下,在这种情况下是数据中心。本研究调查了服务器设备和固定服务器机架的故障。完成了一个低层刚性样本结构的概率研究。该结构分为两个版本进行研究,(i)传统的固定基础结构和(ii)基础隔震系统。已完成选定场地的地震危险性评估。蒙特卡罗模拟是用选定的参数生成的。仿真中包括了隔震系统结构参数和力学性能的不确定性。对锚固失效和振动失效进行了研究。使用了不同的方法来生成脆性曲线。特定场地的年度危险性曲线用于生成两种不同结构的风险曲线。提出了一种用于数据中心设计的风险矩阵。结果表明,在较高楼层,基础隔震系统可显著降低失效概率。人们还了解到,就加速度而言,基础隔震系统对地震特征高度敏感,而不是结构和机械性能的可变性。另一个结果是,代码提供的锚固故障限制比服务器设备的随机振动故障限制更容易受到攻击。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A novel risk assessment approach for data center structures
Previous earthquakes show that, structural safety evaluations should include the evaluation of nonstructural components. Failure of nonstructural components can affect the operational capacity of critical facilities, such as hospitals and fire stations, which can cause an increase in number of deaths. Additionally, failure of nonstructural components may result in economic, architectural, and historical losses of community. Accelerations and random vibrations must be under the predefined limitations in structures with high technological equipment, data centers in this case. Failure of server equipment and anchored server racks are investigated in this study. A probabilistic study is completed for a low-rise rigid sample structure. The structure is investigated in two versions, (i) conventional fixed-based structure and (ii) with a base isolation system. Seismic hazard assessment is completed for the selected site. Monte Carlo simulations are generated with selected parameters. Uncertainties in both structural parameters and mechanical properties of isolation system are included in simulations. Anchorage failure and vibration failures are investigated. Different methods to generate fragility curves are used. The site-specific annual hazard curve is used to generate risk curves for two different structures. A risk matrix is proposed for the design of data centers. Results show that base isolation systems reduce the failure probability significantly in higher floors. It was also understood that, base isolation systems are highly sensitive to earthquake characteristics rather than variability in structural and mechanical properties, in terms of accelerations. Another outcome is that code-provided anchorage failure limitations are more vulnerable than the random vibration failure limitations of server equipment.
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来源期刊
Earthquakes and Structures
Earthquakes and Structures ENGINEERING, CIVIL-ENGINEERING, GEOLOGICAL
CiteScore
2.90
自引率
20.00%
发文量
0
审稿时长
>12 weeks
期刊介绍: The Earthquakes and Structures, An International Journal, focuses on the effects of earthquakes on civil engineering structures. The journal will serve as a powerful repository of technical information and will provide a highimpact publication platform for the global community of researchers in the traditional, as well as emerging, subdisciplines of the broader earthquake engineering field. Specifically, some of the major topics covered by the Journal include: .. characterization of strong ground motions, .. quantification of earthquake demand and structural capacity, .. design of earthquake resistant structures and foundations, .. experimental and computational methods, .. seismic regulations and building codes, .. seismic hazard assessment, .. seismic risk mitigation, .. site effects and soil-structure interaction, .. assessment, repair and strengthening of existing structures, including historic structures and monuments, and .. emerging technologies including passive control technologies, structural monitoring systems, and cyberinfrastructure tools for seismic data management, experimental applications, early warning and response
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